memcg: revert gfp mask fix

[linux-2.6-omap-h63xx.git] / include / linux / irqnr.h

diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 95d2b74641f5dbe2ecb90bb68d430ab600d61b74..86af92e9e84c0e3115845bcd3abbc125d28b5088 100644 (file)
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -8,27 +8,35 @@
 
 #ifndef CONFIG_GENERIC_HARDIRQS
 #include <asm/irq.h>
-# define nr_irqs               NR_IRQS
+
+/*
+ * Wrappers for non-genirq architectures:
+ */
+#define nr_irqs                        NR_IRQS
+#define irq_to_desc(irq)       (&irq_desc[irq])
 
 # define for_each_irq_desc(irq, desc)          \
        for (irq = 0; irq < nr_irqs; irq++)
 
 # define for_each_irq_desc_reverse(irq, desc)                          \
        for (irq = nr_irqs - 1; irq >= 0; irq--)
-#else
+#else /* CONFIG_GENERIC_HARDIRQS */
 
 extern int nr_irqs;
+extern struct irq_desc *irq_to_desc(unsigned int irq);
 
-#ifndef CONFIG_SPARSE_IRQ
+# define for_each_irq_desc(irq, desc)                                  \
+       for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;           \
+            irq++, desc = irq_to_desc(irq))                            \
+               if (desc)
 
-struct irq_desc;
-# define for_each_irq_desc(irq, desc)          \
-       for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
-# define for_each_irq_desc_reverse(irq, desc)                          \
-       for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1);        \
-           irq >= 0; irq--, desc--)
-#endif
-#endif
+
+# define for_each_irq_desc_reverse(irq, desc)                          \
+       for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;      \
+            irq--, desc = irq_to_desc(irq))                            \
+               if (desc)
+
+#endif /* CONFIG_GENERIC_HARDIRQS */
 
 #define for_each_irq_nr(irq)                   \
        for (irq = 0; irq < nr_irqs; irq++)